From: Charles Oliver Nutter <charles.nutter@...>
Date: 2008-12-05T04:28:05+09:00
Subject: Re: Ruby and legacy Java Applications

Joe W旦lfel wrote:
> What are some good ways to integrate Ruby into legacy Java 
> applications?  I realize
> I can execute small Ruby scripts from Java like this:
> 
>         Ruby runtime = Ruby.newInstance();
>         runtime.evalScriptlet("puts 'Hello from Ruby'");
> 
> However, this seems to lend itself only to small snippets of Ruby.   
> Often I'm more likely
> to have a larger body of Ruby code that includes many files, gem 
> dependencies, and
> the ability to work with legacy installers.  Is there an easy way to 
> accomplish this?

In general the easiest way would be to have the Ruby code implement a 
Java interface and get that instance back into Java. There's a few 
examples on wiki.jruby.org. Does that sound lke what you want?

- Charlie